674073400665 has 64 divisors (see below), whose sum is σ = 1239428500992. Its totient is φ = 306442137600.

The previous prime is 674073400661. The next prime is 674073400669. The reversal of 674073400665 is 566004370476.

It is an interprime number because it is at equal distance from previous prime (674073400661) and next prime (674073400669).

It is not a de Polignac number, because 674073400665 - 2² = 674073400661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (674073400661) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18530395 + ... + 18566735.

It is an arithmetic number, because the mean of its divisors is an integer number (19366070328).

Almost surely, 2^674073400665 is an apocalyptic number.

It is an amenable number.

674073400665 is a deficient number, since it is larger than the sum of its proper divisors (565355100327).

674073400665 is a wasteful number, since it uses less digits than its factorization.

674073400665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37330.

The product of its (nonzero) digits is 2540160, while the sum is 48.

The spelling of 674073400665 in words is "six hundred seventy-four billion, seventy-three million, four hundred thousand, six hundred sixty-five".